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Thread: ST4S - SPS racer

  1. #51
    Join Date
    Apr 2013
    Location
    Perth, Australia
    Posts
    149

    Default

    G'day Stig, I have 999RS and 1098RS alternators here and the longer spacer matches what I have for the 999RS (I don't have the spacer for the 1098RS).

    999RS on the left:



    The 1098RS is a larger diameter, slightly bigger external but even larger internal diameter so the 999RS spacer is nowhere near it:



    Sorry, is that what you meant when you said "smaller RS stators"?

    So I'm picking the shorter spacer must be for something a bit earlier.

    FYI, while I had them out the 999RS flywheel/rotor weighs in at 640gm and the 1098RS flywheel/rotor weighs in at 530gm.



    The 1098RS flywheel is quite different construction to the 999/998/996RS flywheel/rotor.



    For those who haven't seen it these things bolt to what is effectively just a wafer, just thick enough to incorporate the ignition pickups so the whole lot weighs bugger all:


  2. #52
    Join Date
    Feb 2011
    Location
    Denmark
    Posts
    676

    Default Smaller = thinner

    Great info! Sorry, by smaller I was thinking thinner. I only have 9xx RS parts, incl 2 different versions of spacers .. 17 mm vs 11mm. What is your spacer and stator thickness ? Thanks helping clarify another Italian mystery
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  3. #53
    Join Date
    Apr 2013
    Location
    Perth, Australia
    Posts
    149

    Default

    Quote Originally Posted by stiglarsenDK View Post
    Great info! Sorry, by smaller I was thinking thinner. I only have 9xx RS parts, incl 2 different versions of spacers .. 17 mm vs 11mm. What is your spacer and stator thickness ? Thanks helping clarify another Italian mystery
    Aaaah, ok, got it. My 999RS spacer is 17mm:



    And the 999RS stator measurement is:



    I hope this is the measurement you are after?

    Looking at the stator again and I noticed it has this (serial? model?) number hand etched into it:



    Good luck mate, Inspector Stig is on the case!

  4. #54
    Join Date
    Feb 2011
    Location
    Denmark
    Posts
    676

    Default Thanks - mystery partly solved

    Thanks .. the dimensions are all the same.. only odd part is the 11mm spacer... a non issues, but indicates a stator version between RS and std road version.

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